CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light

被引：0

作者：

Fang, XiaoXiang ^{[1
]}

Gao, Zhihong ^{[1
]}

Lu, Hanfeng ^{[1
]}

Zhu, Qiulian ^{[1
]}

Zhang, Zekai ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Coll Chem Engn, Inst Chem React Engn, Hangzhou, Zhejiang, Peoples R China

来源：

JOVE-JOURNAL OF VISUALIZED EXPERIMENTS | 2019年 / 148期

关键词：

Engineering; Issue; 148; CO2; photoreduction; H2O; CH4; hydrocarbon; concentrating solar light; photocatalysis; CARBON-DIOXIDE; PHOTOCATALYTIC CONVERSION; WATER; REDUCTION; TIO2;

D O I：

10.3791/58661

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We demonstrate a method for the enhancement of CO2 photoreduction. As the driving force of a photocatalytic reaction is from solar light, the basic idea is to use concentration technology to raise the incident solar light intensity. Concentrating a large-area light onto a small area cannot only increase light intensity, but also reduce the catalyst amount, as well as the reactor volume, and increase the surface temperature. The concentration of light can be realized by different devices. In this manuscript, it is realized by a Fresnel lens. The light penetrates the lens and is concentrated on a disc-shaped catalyst. The results show that both the reaction rate and the total yield are efficiently increased. The method can be applied to most CO2 photoreduction catalysts, as well as to similar reactions with a low reaction rate at natural light.

引用

页数：5

共 15 条

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